A color pigment containing, based upon the total weight of the pigment, at least 70.0 weight % of a first compound COP according to Formula (I): ##STR00001## wherein one of R.sup.1 and R.sup.2 is hydrogen and the other one of R.sup.1 and R.sup.2 represents --COOR.sup.4; R.sup.4 and R.sup.5 represent methyl; R.sup.3 is selected from the group consisting of: ##STR00002## with C* representing the point of attachment of R.sup.3 to the nitrogen in Formula (I); and having a pigment surface including between 2.0 and 30.0 weight %, based upon the total weight of the pigment of a second compound according to Formula (I), wherein --R.sup.1, R.sup.2-, R.sup.3, R.sup.4 and R.sup.5 have the same meaning as above with the exception that at least one of R.sup.4 and R.sup.5 represents hydrogen. Also, methods of preparation of the pigment and non-aqueous pigment dispersions.